BIOL 311 Lecture Notes - Lecture 7: Lactose Intolerance, Lactase, Start Codon
Document Summary
The e nzyme la cta s e is re quire d to bre a k la ctos e into glucos e a nd ga la ctos e in huma n dige s tion. Emergence of lactas e p ers is tence. La ctos e pe rs is te nce is the condition tha t a llows a dults to dige s t la ctos e . It is inhe rite d in a n a utos oma l domina nt fa s hion. It unde rwe nt pos itive s e le ction a mong da iry fa rme rs. P reventing enhancers from imp rop erly activating gene exp res s ion. Enha nce r mus t be in the s a me loop a s the promote r for e nha nce os ome forma tion.